Patches to python-keyring

[Asheesh Laroia]

Hey all,

On my machine sometimes, when python-keyring makes this call:

kwallet = KWallet.Wallet.openWallet(
KWallet.Wallet.NetworkWallet(), KWallet.Wallet.Synchronous)

kwallet prints this to stderr:

"The kwalletd service has been disabled"

and the kwallet value becomes None.

The way python-keyring is written now, it does not check for this case.

These patches:
https://bitbucket.org/paulproteus/python-keyring-lib/changeset/394050f04c5c
https://bitbucket.org/paulproteus/python-keyring-lib/changeset/16f741b06c24

together fix that.

I submit them for your review, and hopefully merging.

Let me know what you think!

-- Asheesh.